The Cardiovascular System Is Made Up Of 3 Things

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Assignment 1.2 The cardiovascular system is made up of 3 things; Heart, Blood Vessels and your Blood. Heart= The heart is around the size of a persons fist, it is composed of 2 sides and four chambers, the left and right atria and the left and right ventricles. The atria’s are at the top of the heart, they receive blood from various parts of the body. The two ventricles are located on the bottom of the heart and pump blood away from the heart. The right ventricles responsibility is to pump the deoxygenated blood to the lungs, while the left ventricle pumps the oxygenated blood to the rest of the body. Between the chambers there are valves in the heart, the valves control the flow of blood, making sure it flows in one direction. Blood Vessels= Blood vessels are a series of tubing that carries blood to and from the heart. The oxygenated blood leave the heart and supplies oxygen and nutrients to your body via the arteries. After going through the capillaries, veins return deoxygenated and waste products to the heart, (through the vena cova). After leaving the right ventricle through the pulomonary arteries, the blood gets oxygenated in the lungs, gets rid of carbon dioxide from the body and then returns to the left atrium from the pulmonary vein, then the left ventricle to repeat the process again. The Blood= Blood is a fluid that contains red blood cells, white blood cells, platelets and a watery substance called plasma that contains proteins, sugars. fats and minerals. The
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